| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sartbaeva, Asel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2019Defective hierarchical porous copper-based metal-organic frameworks synthesised via facile acid etching strategycitations
- 2019Defective hierarchical porous copper-based metal-organic frameworks synthesised via facile acid etching strategycitations
- 2019Formation and characterisation of ZnS nanoclusters in the pore channels of modernite zeolite
- 2017Defining the flexibility window in ordered aluminosilicate zeolitescitations
- 2017Local and Average Structural Changes in Zeolite A upon Ion Exchangecitations
- 2015GASP: software for geometric simulations of flexibility in polyhedral and molecular framework structurescitations
- 2011Flexibility windows and phase transitions of ordered and disordered ANA framework zeolitescitations
- 2009Compression behaviour and flexibility window of the analcime like feldspathoids: experimental and theoretical findingscitations
- 2008Flexibility window controls pressure-induced phase transition in analcimecitations
- 2008Search for a structural response to the intermediate phase in GexSe1-x glassescitations
- 2007Local structural variability and the intermediate phase window in network glassescitations
- 2005Ionic diffusion in quartz studied by transport measurements, SIMS and atomistic simulationscitations
Places of action
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article
Local and Average Structural Changes in Zeolite A upon Ion Exchange
Abstract
The infamous ‘structure–property relationship’ is a long-standing problem for the design, study and development of novel functional materials. Most conventional characterization methods, including diffraction and crystallography, give us a good description of long-range order within crystalline materials. In recent decades, methods such as Solid State NMR (SS NMR) are more widely used for characterization of crystalline solids, in order to reveal local structure, which could be different from long-range order and sometimes hidden from long-range order probes. In particular for zeolites, this opens a great avenue for characterization through studies of the local environments around Si and Al units within their crystalline frameworks. In this paper, we show that some structural modifications occur after partially exchanging the extraframework Na + ions with monovalent, Li + , K + , Rb + and NH 4+ and divalent, Ca 2+ cations. Solid state NMR is deployed to study the local structure of exchanged materials, while average stricture changes can be observed by powder diffraction (PXRD). To corroborate our findings, we also employ Fourier Transform Infrared spectroscopy (FT-IR), and further characterization of some samples was done using Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray spectroscopy (EDX).